Conveyer.



A. W. CRAWFORD, DECD. THE TRUSTS AND GUARANTEE COMPANY, LIMITBD,ADMINISTRATOR.

GONVEYER.

APPLICATION PILEDIMAY 27,1909.

Patented Oct. 3, 1911.

3 SHEETS-SHEET 1.

Summon COLUMBIA PLANosn/mn co WASHINGTON, D. c.

A. W. CRAWFORD, DEGD. THE TRUSTS AND GUARANTEE COMPANY, LIMITED,ADMINISTRATOR.

OONVEYBR.

APPLICATION FILED MAY 27,1909.

a SHEETS-SHEET z.

I awmwoto'c Patented Oct. 3, 1911.

A. W. CRAWFORD, DEGD. THE 'rnus'rs 111m GUARANTEE 0011mm, LIMITED,ADMINISTRATOR. GONVEYER.

APPLICATION FILED MAY 27, 1909. 1,004,997. Patented 0013.3,1911.

3 BHEETS-BHEET 3.

COLUMBIA PLANDIJRAPH CO-.WA5HLNOTON. 0.1:.

UNITED STATES PATENT OFFICE.

ABNER WALLACE CRAWFORD, OF TORONTO, ONTARIO, CANADA, ASSIGNOR OF ONE-TENTI-I TO WILLIAM C. PERKINS, OF NIAGARA FALLS, NEW YORK, ONE-TENTH TOFRANK M. WILLIAMS, OF ALBANY, NEW YORK, AND ONE-TENTH TO PHILIP P. PETZ,OF LEWISTON, NEW YORK; THE TRUSTS AND GUARANTEE COMPANY, LIM- ITED,ADMINISTRATOR OF SAID ABNER WALLACE CRAWFORD, DECEASED.

CONVEYER.

To all whom it may concern Be it known that I, ABNER WALLACE CRAWFORD, acitizen of the Dominion of Canada, resident of Toronto, in the county ofYork, Province of Ontario, and Dominion of Canada, have made a certainnew and useful Invention in Conveyers; and I declare the following to bea full, clear, and exact description of the same, such as will enableothers skilled in the art to which it appertains to make and use theinvention, reference being had to the accompanying drawings, and toletters or figures of reference marked thereon, which form a part ofthis specification.

Figure 1 is a side view of the conveyer as in use. Fig. 2 is a plan viewof the same, with the casing partly broken away. Fig. 3 is a side viewof the invention with the conveyer proper thrown back in position fortransportation. Fig. 4 is a detail side view of the upper portion of theconveyer showing the vibratory table in normal position. Fig. 5 is adetail front view of the same. Fig. 6 is a detail side view with partsbroken away showing the vibratory table in the position assumed when achain bucket is about to pass the same. Fig. 7 is a detail plan view ofthe same. Fig. 8 is a detail rear view of one of the shovel heads andits handle bar connection, also showing the op erating rod connection,parts being broken away. Fig. 9 is a side view of the same. Fig. 10 is afront view of the same.

My invention relates to improvements in conveyers for moving grain,coal, gravel and the like, having for its object the provision of anefiicient machine, economical in its op eration, which may be readilyapplied to the loading and unloading of cars, wagons, ships, bins,elevators, etc., and which may be conveniently transported from place toplace.

Other objects and advantages will hereinafter appear.

The invention consists in the novel construction and combinations ofparts as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the letter a,designates the conveyer, of which 6, b, are the sprocket Specificationof Letters Patent.

Application filed May 27, 1909.

Patented Oct. 3, 1911.

Serial No. 498,750.

carrying wheels, 0, the endless sprocket chain engaging said wheels andhaving buckets, 03, d, and e, the incasement or casing, the whole ofwhich is a complete operative unit, being mounted upon wheels f, f, atone end.

The conveyer chain and casing are when in use in approximately verticalposition, as shown in Flg. 1 of the drawings, and at the side thereofopposite to the wheels f, f, are provided reciprocatory shovels g, g,which are designed to gather the material to be loaded toward theconveyer buckets. The upright carrying bars or handles 9, g, of theseshovels work in slots h, h, of a frame it, attached to the casing, saidslots having a converging relation to the casing and conveyer bucketswhereby the shovels in their movement will work the grain or coal towardthe same from both sides. The reciprocatory movement of the shovels iseffected by means of crank arms 2', i, of the shaft Z2 of the lowercarrying wheels I), each crank arm having universal joint connection atwith an inward extending arm 9 of each shovel bar 9, such bars havingeacha slot j, at its upper end portion, arodj, engaging such slots andserving to allow upward and downward movement of the shovel in itsreciprocation. Each arm 9 of the shovel has an upward extending chainconnection 9 with frame bar 3' in which the rod j, is mounted, suchchain serving to control the upward and downward movement of the shovel,which works in an arouate path upon such chain as a radius, movingdownward as it approaches the conveyer and upward in the reverse half ofits stroke. The length of this chain is so adjusted that when the shovelis being thrust outward it is raised from the coal or other casing atand from which depending canvas walls k forming the body of the chute,are hung. A brace arm [6 serves to keep the chute in proper positionaway from the conveyer casing. A screen is, may be provided in theaperture of the top frame of the chute.

For the purpose of preventing the material being transferred fromfalling down within the casing as the buckets are discharged into thechute, a vibratory inclined table or platform 1, is provided, bridgingthe interval between the conveyer buckets and the chute and pivoted atits upper end to crank arms 1%, m, loosely mounted upon the axle 6 ofthe upper sprocket carrying wheels I), the lower end of said platformresting upon lugs 6 of the casing. These crank arms are held in uprightposition by means of coil springs Z, connected thereto at their innerends, surrounding the axle b and fixed at the outer ends thereof to theside wall of the casing at e. In the rotation of the upper wheels I),lateral projections 6*, thereof engage with the crank arms m, m, andmove the same together with the vibratory platform downward and outwardtoward the screen 76 as each bucket, which has previously discharged itsload, ap-

proaches, so that it may pass, the coiled springs Z, Z, being at thesame time wound or put under tension to a degree sufficient to causethem to contract laterally along the shaft Z7 the crank arms movingtherewith until they spring past the lateral projections and with theplatform resume normal position bridging the interval between thebuckets and chute. The operation of the platform is repeated as eachbucket discharges its load and approaches the platform.

The wheels f, f, are located at one end of the casing, the axle f,thereof having journal bearings in a frame F, secured to the casing andcomposed of steel bars extending outward from the casing atsubstantially right angles beyond the peripheries of said wheels, wheresaid bars are provided with a small wheel f central of the wheels f, f.The frame F has lateral brace bars f, connecting the same with thecasing. In the vertical position of the casing and conveyer the lowerend of the casing rests upon the ground at one side of the wheels f, f,and is stably supported. When the conveyer is to be moved or transportedto another location, the attendant presses his foot upon extension n, ofthe frame bars. f tipping backward the casing and conveyer until thesmall third wheel f rests upon the ground, as shown in Fig. 3 of thedrawings. The end portion of the frame F, in which the small wheel F, ismounted is preferably pivoted at n, to the body of such frame, wherebythe wheel may be turned upward out of the way for nearer approach to thecar or wagon to be loaded.

p, is a motor mounted within the casing and having sprocket gearconnection 7), with the shaft of the upper wheels I).

The shovel heads g, g, have hinge lugs g", 9'', whereby they arepivotally connected to the handle bars g, g, at g, the pivotal movementof each head being limited in one direction by engagement of upwardextensions g 9 of the hinge lugs with lateral pins 9 of the handle bar,and in the opposite direction by engagement of an upward extending lug 9(at the side of the head opposite the hinge lugs) with the handle bar.The pivotal movement thus allowed the shovel head upon its handle bar isof advantage in the shoveling action.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a conveyer for the purpose described, an endless carrier, adischarge chute separated from said carrier by an interval, an inclinedvibratory table spanning said interval in its vibrations, and means forvibrating said table.

2. In a conveyer for the purpose described, an endless carrier, atdischarge chute separated from said carrier by an interval, an inclinedvibratory table spanning said interval in its vibrations, said tablehaving a support at one end thereof upon which it slides, and avibratory arm support at its opposite end portion, and means forvibrating said arm support.

3. I11 a conveyer for the purpose described, an endless carrier chainhaving buckets and carrying wheels, a discharge chute separated fromsaid carrier by an interval, an inclined vibratory table spanning saidinterval in its vibrations, crank arms upon the upper carrying wheelshaft having a pivotal connection with said table at one end portionthereof, said table having a support at its opposite end portion uponwhich it slides.

41;. In a conveyer for the purpose described, a casing, a motor, anendless conveyer chain, wheels for said chain, reciprocatory shovelshaving handle bars provided at their upper end portions with slot andpin connection with the casing, said shovels having operating crank androd connection with said motor and limiting chain connection with thecasing to cause them to move in an arcuate path.

5. In a conveyer for the, purpose described, an endless conveyer chain,wheels for said chain, reciprocatory shovels having handle bars eachprovided at its upper end with slot and pin connection with the casing,said shovels having each an inward extending rod having a universaljoint connection with a crank arm ofa shaft operated by said motor, anda chain connecting said rod with the casing to cause the shovel to movein an arcuate path.

6. In a conveyer for the purpose described, an endless conveyer chainhaving buckets attached thereto at intervals, wheels for said chain, aninclined vibratory table upon which said buckets discharge, and meansfor operating said table including crank arms having at their upper endspivotal connection with said table and loosely mounted upon a shaft,coil springs upon said shaft having at one end connection with the crankarms and at the other end connection with the casing, wheels upon theshaft of said crank arms having lugs engaging said crank arms to movethe same with the table at intervals, said crank arms being capable ofspringing past said lugs to restore the table to normal position.

7. In a conveyer for the purpose described, an endless conveyer chain,wheels for the same, a casing therefor, supporting wheels having an axleconnection with said casing at one end portion thereof, said casingbeing when upright capable of resting at one end thereof upon theground, said axle having a rollercarrying extension capable of assumingan approximately horizontal position with the roller raised from theground when the conveyer is upright.

8. In a conveyer for the purpose described, an endless conveyer chain,wheels for the same, a casing therefor, supporting wheels having an axleconnection with said casing at one end thereof, said casing being whenupright capable of resting at one end thereof upon the ground, said axlehaving a roller-carrying extension capable of assuming an approximatelyhorizontal position with the roller raised from the ground when theconveyer is upright, the end portion of said extension in which theroller is journaled being pivoted and capable of being turned upward outof the way.

9. In a conveyer for the purpose described, an endless conveyer chainhaving bucket attachments, wheels for the same, a casing therefor,reciprocatory shovels for gathering the material to be transferredtoward the conveyer, an inclined vibratory table upon which the bucketsof the chain discharge, supporting wheels having an axle connected withsaid casing at one end thereof, said casing being when upright capableof resting at one end thereof upon the ground, said axle having a rollercarrying extension capable of assuming a substantially horizontalposition with the roller raised from the ground when the conveyer isupright.

10. In a conveyer for the purpose de scribed, an endless conveyer chainhaving bucket attachments, wheels for the same, a casing therefor, amotor within said casing and having driving connection with said chain,supporting wheels having an axle connected with said casing at one endthereof, said casing being when upright capable of resting upon theground, a chute having a rigid aperture top-frame connected to thecasing and provided with depending walls, and a vibratory table bridgingthe interval between the buckets of the chain and the chute.

In testimony whereof I aiiix my signature, in presence of two witnesses.

ABNER WALLACE CRAWFORD.-

IVitnesses A. W. CRAWFORD, KATE MURPHY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. C.

